教学《荷花淀》，教师让学生在“真实、富有意义的语文实践活动情境”中开展学习，播放了荷花淀实景视频。对该教师的行为，下列理解正确的是（  ）。

Passage 1    The World Cup has become the most streamed live sporting event the US has ever seen, as Americans tuned in to this year's tournament on their smart phones, tablets and computers in record numbers.    A of US interest in football this year has also led to record television audiences for broadcasts on ESPN and Uni-vision, the Spanish-language network. The US team's loss on Tuesday to Belgium averaged a 9.6 0vernight rating on ESPN, according to Nielsen, the highest for any World Cup match the network has broadcast.    But a 50 per cent surge in live streaming compared with the previous record, set during the 2012 London Olympics, shows that the sport's appeal has grown particularly among younger, more digital, fans. Young people are energetic and fond of sporting. The World Cup is a great tournament of football, so they must be attractive. On the other hand, now the electronic devices are developing rapidly, more people have smart phones, tablets and computers. Then to watch the World Cup becomes much easier.US viewers have so far watched nearly 30m hours of streaming video on ESPN's World Cup website and apps, the network said, beating the previous record of 20.4m viewing hours during NBC's 2012 0lympics coverage. Univision has streamed l.5m hours since the start of the tournament.    Last week's USA vs. Germany match drew a record 1.7m streaming viewers to ESPN at its peak, with streaming on Univision peaking at 747,000. Tuesday's USA vs. Belgium match peaked at 1.5m streams on ESPN and 680,000 On Univision.    In comparison, live streaming of January's Super Bowl peaked at 1.1m.    While the elimination of the US team leaves a question mark over US fans' interest in the rest of the tournament, Univision's audience for non-US games has been robust.    Univision said its broadcast on Sunday of the Mexico vs. Netherlands match was the most-watched programme, of any kind, in US Spanish-language TV history, with an average 10.4m viewers. Its audiences have been the largest in cities with large Spanish-speaking populations, such as Miami, Los Angeles, Houston and New York.    With most matches being shown during business hours, Americans are increasingly turning to their devices, such as smart phones, tablets and computers to keep up with the tournament. Fifa, football's governing body, said US fans make up 20 percent of its global digital audience and are spending more time on its website and apps than fans in Brazil, Germany, England and France combined.    With different kind of electronic devices to watch World Cup, the number of audience becomes larger. The flood of demand caused some problems with ESPN's feeds, leading frustrated viewers to take to Twitter to complain about the match cutting out. That had also happened during the USA vs. Germany game.
What can we conclude from the first two paragraphs?

为最大限度地预示和减少青少年学生的违法犯罪活动，学校应该（）。

2017年2月8日，甲向乙借款20万元，约定于2017年6月8日前偿还。直到2021年6月1日，乙方才想起数年前甲向自己借过20万元至今未还，两人一直未曾联系过。于是乙找到甲要求其还钱，但甲生活困顿，无力偿还。6月22日，乙发现甲的弟弟丙欠甲10万元，早已到期，但甲并未要求丙还钱。对此，下列说法，表述正确的是（   ）。

乌鸡白凤丸除补气养血外，又能（）

男性患儿，5岁。不思进食，食而不化，神倦多汗，大便偏稀夹有不消化食物，面色少华，形体偏瘦，肢倦乏力。苔薄白，脉缓无力。诊断为厌食。
宜选用的方剂是（   ）

欲查询接种预防性生物制品出现紧急情况的应急处理办法，在药品说明书中可查询（     ）

患者女，17岁。疲乏无力、心烦易怒、怕热多汗多年。疲乏无力、心烦易怒、怕热多汗半年，易饿，体重下降11kg。月经量减少，经期仅1～2天。查体：P108次/分，BP140/70mmHg，皮肤微潮，手有细颤，轻微突眼，甲状腺Ⅰ度弥漫性肿大，质软，无触痛。该患者最可能的诊断是

巨幼细胞性贫血者应选用（ ）

mRNA的剪接过程称为（）。

人们在需要用药时，时间就是生命，它体现了药品特殊性中的